Premium USA-Made Peptides

You can cancel before shipping. Once shipped, you can not cancel. Once you receive the product, if it is damaged, otherwise unusable, or missing, you have 48 hours to send us a picture of the packaging, product, and packing slip. We do not refund based on dissatisfaction from usage. We may offer a replacement.

Refund terms and return rules: Unused membership fees are refunded pro-rata if you cancel within the billing period. Compounded products, once shipped, are non-returnable under federal pharmacy rules.

Yes. MyPeptide research peptides are synthesized and filled in a certified cGMP facility in the United States, released to a >99% purity standard, and verified by accredited U.S. laboratories. Every batch ships with a Certificate of Analysis, and every vial carries a QR code that opens that batch’s COA. cGMP refers to manufacturing process controls and documentation; analytical purity is confirmed separately via laboratory testing and batch COAs.

Yes. Each peptide is tested for identity and purity, and a Certificate of Analysis (COA) is available for the products we carry. Look for the "View Certificate of Analysis" link on the product page.

Most are supplied as lyophilized (freeze-dried) powder in sealed vials, intended to be reconstituted in a laboratory setting according to your own research protocol.

Follow standard laboratory practice. Most lyophilized peptides are stable at room temperature for shipping and should be refrigerated (2–8 °C / 36–46 °F) after reconstitution. Protect from light and avoid freeze-thaw cycles unless your protocol requires otherwise.

Purchases are limited to adults 21 or older acquiring materials for legitimate laboratory or research use. By registering and checking out you confirm you meet these requirements.

Most orders ship within 2–4 business days after the order is approved and are delivered within 2–3 business days after that, depending on your location. Tracking is emailed and posted to your portal the moment the pharmacy generates a label. Shipping is dependent upon verification of payments processed.

Yes. Packages arrive in plain, unmarked outer boxes with no clinical branding, no product name, and no pharmacy identifier on the exterior. The return address is a fulfillment center, not your distributor.

Take a photo of the packaging and the product and message your care team within 48 hours of delivery. The manufacturer will evaluate and — when the product is compromised — reship at no additional cost.